[Implemented] TOW Alert

[Dan]

Hello,

When on duty as a TOW, I think you should make it more obvious that there is a TOW Awaiting. I know it comes up in the top right, and a message on the chat about "XXX has called for a tow" but sometimes it's not very eye catching.

Something like a big message like in the middle of the screen saying "New TOW Request" would be great when one incomes.

Thanks,
Daniel.