My grandpa used to work for the MN highway department. That isn't a joke, it was reality for them. Either the plows are on the truck and they are plowing snow, or the plows are not on and they are fixing roads.
Roads are a tiny % of any government budget. St Paul could have the money to do more if they wanted, and it wouldn't be much of a total budget increase. However it would still increase taxes and so people should debate if it is worth the cost.