I have pea vines sprouting. They also went in too late to be likely to produce any peas. They are just an inch or two tall and frost is due in a month or so. But hopefully they will spend this month doing their nitrogen fixing thing. Once they are frost killed, I will just bury them and mulch over everything. And the garlic I planted is sprouting too... maybe home grown garlic in the spring. It's all new things I'm trying, so it's fun whatever happens!
Next year maybe plant the peas earlier, while the tomatoes are still producing. The baby pea vines could be crawling up the outside of the tomato cage and wouldn't bother the big tomato plants any. Since it would still be warmer, the peas might like the shade of the tomatoes. Then by the time I took the tomato plants down, I might actually get to eat some peas before frost takes them.