To Be Honest, I don't see the problem in taking your snake out with you, but on the other hand, you have to bear in mind how long your expecting to be out and how many people are going to be there? Because from my personal experiences not a whole lot of people are used to seeing snakes every single day and to some people it can be quite startling, I'm not saying you shouldn't take your snake out, but you'd be better off taking your snake somewhere that's going to have a lot less 'going on' as such and a lot less to worry/scare the little fella.

Hope you bear it in mind, thanks.