It's common sense to not accelerate a vehicle if there are people in front of you, just go to a different gas station. Anyway, I'd charge him with battery at the least.
The question isn't whether the the driver was being sensible. Judging by the video, he clearly wasn't trying to harm the protesters nor did he harm them. If being nonsensible is a crime then all of those idiot protesters are criminals. The gas station in question merely had the bad luck to be where Pellerin was shot. No one involved with the gas station was in any way responsible for the events that happened there several nights ago. Trying to force the station to close is clearly nonsensical, though one can argue its owner or manager was being insensitive to what had happened there by being open, were any of those protesters going to do anything to compensate the station for its loss of business if it had closed?I
If it's going to be turned into a memorial for Pellerin then someone needs to buy the station and make it one, not force an innocent concern to suffer because of your sense of outrage.
It looks like the group followed the directions of the police and moved to a different area shortly after the incident with the truck, so I cannot imagine the gas station owners lost much business. Blocking the site of the shooting is not the protest technique I would've signed off on, but the truck driver slowly accelerating into the group would be the guilty party should someone have been injured. Again, they could've just gone to a different gas station.